Medium
In a right triangle, the two legs measure 40 cm and 9 cm. Find the length of the hypotenuse.
Explanation
Explanation
By the Pythagoras theorem, (hypotenuse)² = (leg₁)² + (leg₂)². Here 40² + 9² = 1600 + 81 = 1681 = 41², confirming the sides 40, 9, 41 form a right triangle so the hypotenuse is 41 cm.
PRO TIP
Re-check your working by substituting the answer back into the original question.